| Name | Meaning | Gender | Origin |
|---|
| Belle | Beautiful | Female | French |
| Ben | Son | Male | Hebrew |
| Billie | Will, desire and helmet, protection | Unisex | Germanic |
| Bingo | A game where numbers are drawn and announced by a caller | Unisex | English |
| Biscuit | A cookie or cracker | Unisex | English |
| Blackjack | A leather covered hand weapon. A card game | Unisex | English |
| Blizzard | Violent snowstorm | Unisex | English |
| Blossom | Blossom, flower | Female | English |
| Bob | Bright fame | Male | Germanic |
| Bobbi | Bright fame | Female | Germanic |
| Bobby | Bright fame | Unisex | Germanic |
| Bojangles | | Unisex | Hebrew |
| Bolt | | Unisex | Hebrew |
| Bonnie | Pretty | Female | English |
| Bonsai | The art of growing dwarfed ornamental trees and shrubs. | Unisex | English |
| Booker | A bleacher of cloth | Male | English |
| Boomer | A large full grown kangaroo. A baby boomer. | Unisex | English |
| Bradley | Broad wood | Male | English |
| Brady | Descendant of Brádach | Unisex | Gaelic |
| Brandy | Burning wine | Female | English |
| Britney | Originally The Ancient Duchy Of Bretagne In France. Celtic Bretons Emigrated From France To Become The Bretons Of England. | Female | English |
| Brodie | Muddy place | Male | Gaelic |
| Bruiser | A large heavyset man | Unisex | English |
| Bruno | Armour | Male | Germanic |
| Brutus | Heavy, slow, foolish | Male | Latin |
| Bubbles | Thin spherical liquid filled with gas. Irrepressible activity. | Unisex | English |
| Buddy | Herald | Male | English |
| Bullet | A metal cylinder shot from a rifle or gun. Used to express speed. | Unisex | English |
| Buster | One that breaks up something | Unisex | American English |
| Buzz | To move quickly and busily, to bustle | Male | English |